Turn signals on 2001 chevy blazer not working. Tried to replace the 'flasher'. That was not the problem. What else could it be?
The way the system works is:
The fuse supplies 12 volts to the flasher unit then leaves the flasher and goes to the turn-signal switch in the steering column.
When you set the turn-signal switch to turn right or left, the switch sends that 12 volts to the front and rear bulbs. The voltage goes through the bulb, lighting the bulb and goes to ground.
If any of these components are not good than the lights will not work.
Check the fuse and make sure it is good, the fuse will be located under the hood at the fuse center.
Let me know if you have a test light and we can proceed from there.
Regards,
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